The Samsung Galaxy S is a touchscreen-enabled, slate-format Androidsmartphone designed, developed, and marketed by Samsung Electronics. It is the first device of the third Android smartphone series produced by Samsung.[4] It was announced to the press in March 2010 and released for sale in June 2010.

The Galaxy S is produced in over two dozen variations. The international 'GT-I9000' reference version features a 1 GHz ARM "Hummingbird" processor, a PowerVR graphics processor, 8 or 16 GB of internal flash memory, a 4 in (10 cm) 480×800 pixel Super AMOLED capacitive touchscreen display, Wi-Fi connectivity, a 5-megapixel primary camera and a 0.3-megapixel secondary front-facing camera.[5] Derivative models may include localized cellular radios or changes to button layouts, keyboards, screens, cameras or the Android OS.

At the time of its release, the Galaxy S included the fastest graphical processing of any smartphone,[6] was the thinnest smartphone at 9.9mm[7] and was the first Android phone to be certified for DivX HD.[8]

The phone was initially launched in Singapore on June 4, 2010.[10] Before the end of its first weekend on sale in Singapore, Samsung tweeted that Singtel, the exclusive carrier to sell the device in Singapore, was sold out of devices.[11] On Friday June 25, 2010, the phone was launched in Malaysia and South Korea.[12][13] Overall the launch schedule comprised launches on 110 carriers in 100 countries at the same time.[14] U.S. Variants named as Epic, Vibrant, Fascinate, Captivate, and Mesmerize were released from June through September 2010.

GSMArena.com described the Galaxy S as having "perfect audio quality," claiming the phone's superior all-round performance made it a "new leader of the Android pack."[16]

TIME listed the Galaxy S as #2 device in "Top 10 Gadgets" of 2010, praising its Super AMOLED display.[17]

The phone was criticized by some reviewers for sub-par GPS performance. Anandtech, reviewing the Epic 4G variant, said "the phone will take an inordinate amount of time to determine your actual location, and/or it won’t pinpoint your location very accurately."[18] Engadget described the GPS in the Vibrant and Captivate variants as "utterly broken and non-functional … this is a problem for which there's no reasonable explanation why it made it all the way to retail devices."[19] Samsung released an application for the Captivate and Vibrant variants only that resets the phone's GPS settings to factory defaults.[20]TechRadar acknowledged GPS faults in the Galaxy S, and stated that these have been fixed in the Google Nexus S.[21] There is however a solution to the problem and it includes opening it and welding the antenna contacts with the motherboard.[22]

The Samsung Galaxy S has 512 MB of LPDDR1 RAM (Mobile DDR). Some variants also come with either 8 GB or 16 GB of OneNAND memory combined in a package-on-package stack with the processor. An external microSD card slot supports up to 32 GB of additional storage memory.[23]

Samsung Galaxy S has 5 MPx camera with no optical but digital zoom. It has sensor type 1/3.6" (rectangle 4×3 mm), which is a bit smaller in size than usual sensor in digital compact cameras, which have 1/2.33"-1/2.5" type sensor.

The phone employs the proprietary Samsung TouchWiz 3.0 user interface. Unlike TouchWiz 3.0 on the Samsung Wave, it allows up to seven homescreens. However, different from other Android user interfaces, TouchWiz 3.0 allows users to add, delete and rearrange homescreens. The program launcher is also different from other Android user interfaces in that it has an iOS-like program menu which allows customization of shortcuts. In addition, three of the four shortcuts at the bottom of the screen can also be customized.

The Epic 4G features a specialized version of TouchWiz based on TouchWiz 3.0. Because of the Epic 4G's QWERTY slide-out keyboard, the homescreen needed to be able to rotate into landscape mode. The other Galaxy S TouchWiz 3.0 devices do not support this feature.

The most important aspect of all three generations of TouchWiz is the widget interface. The most prominent widgets that come with the Galaxy S are the Daily Briefing, weather clock and the Buddies Now widget. In addition to Samsung widgets, standard Android widgets can be added and removed from the homescreens.

Other provided software includes the Layar Reality Browser, a program that visualizes GPS direction, and Aldiko, an ebook reader. The phone also comes with various upgraded versions of software that came with Samsung's previous generation of smartphones (such as i8910HD and i8000 Omnia II).

Canada received the 2.2 upgrade for select carriers on December 10, 2010.[30]

According to Samsung the 2.2 upgrade has come to the USA in 2011 for most versions of the handset (AT&T Captivate, Verizon Fascinate, T-mobile Vibrant, Sprint Epic).[31] The 2.2 upgrade was released for T-Mobile on January 20, 2011.[32] It enabled stock Android features that had previously been disabled such as Wi-Fi calling and mobile AP.

Verizon's Fascinate was upgraded to Android 2.2 in April 2011. Verizon's Continuum variant was upgraded to 2.2 in February 2012.[citation needed]

An Android 2.3 ("Gingerbread") update became available for Nordic countries, The Netherlands and Germany on April 16, 2011. The update reached UK, India and HongKong by the start of Nov, 2011. Singapore received the update in June. Australia received the update in August. The Samsung Epic for Sprint started receiving the Gingerbread update on November 9, 2011 and the update was released for the Samsung Galaxy S 4G on November 15. As of December 1, 2011, the Samsung Fascinate on Verizon has been updated to Gingerbread 2.3 (Droid-Life).

T-Mobile in the USA made the 2.3 upgrade available on November 15, 2011. Currently this update is only available on T-Mobile's 4G model (SGH-T959V). It's unknown at this time if T-Mobile USA will produce a 2.3 update for its original Samsung Galaxy S (SGH-T959). The SGH-T959V update is available at http://support.t-mobile.com/docs/DOC-1810.[33] On January 10, 2012, AT&T provided an update to Gingerbread (2.3.5) to the owners of the Captivate (SGH-I897). The update was possible through a manual update using Kies Mini.

An official update to Android 4.0 was never released, as Samsung felt that the Galaxy S did not have enough memory (RAM) to run the TouchWiz interface on top of Android 4.0.[34] In lieu of Android 4.0, Samsung released a "Value Pack" update for the Galaxy S in March 2012 in South Korea, which maintains the 2.3 (Gingerbread) -based operating system, but includes new features from TouchWiz 4.0 (some of which backported from 4.0) such as face unlock, improvements to the launcher, the ability to take still photographs while recording video, and a redesigned photo editor.[35]

However, unaffiliated developers associated with Cyanogenmod produced unofficial updates based on Android 4.1, 4.2, 4.3 and 4.4 for the Galaxy S and its variants. These updates are developed from Android Open Source Project code.[36]

The Brazilian "GT-I9000B" includes an ISDB-T1segdigital television tuner with program guide, closed caption and recording support. The units are manufactured locally by Samsung to take advantage of tax cuts associated with local production.

The "GT-I9003" is a late-model, reduced-cost version of the Galaxy S. It substitutes the 4-inch Super AMOLED screen with a cheaper 4-inch SuperClear-LCD screen. It also swaps the Hummingbird SoC with a Texas InstrumentsOMAP 3630 SoC, which includes the slower PowerVR SGX530 graphics processor[50] and TWL5030 DAC. To compensate for the increased power draw of the SC-LCD screen, battery capacity is increased from 1,500 to 1,650 mAh.

North American versions of the Galaxy S moderately differ from the "GT-I9000" reference version. Most use a 4-button layout, drop the FM tuner and front camera, and include UMTS band V support. A number of models also include 4G support and a physical QWERTY keyboard.

AT&T released this variant (SGH-I897) for the United States on July 18, 2010,[67] while Rogers released its own variant (SGH-I896) for Canada. Both variants include 16 GB of internal flash memory, but without the front camera, FM radio and LED camera flash present on other Galaxy S variants. Android 2.3 "Gingerbread" is available for this model.[68] The Rogers version includes minor GPS functionality differences and the ability to utilise HSUPA.

T-Mobile released this variant (SGH-T959) for the United States on July 15, 2010.[69] It is the third Android 2.x phone officially supported by T-Mobile (after the Nexus One and MyTouch 3G Slide). Like the Captivate, it includes 16 GB of internal flash memory, but omits the front camera and FM radio, and lacks an LED camera flash. Android 2.3 "Gingerbread" is the last version available for this model.[70]

T-Mobile and Wind Mobile also released the closely named Vibrant 4G (SGH-T959V/W) in February 2011. It adds HSPA+ support and a 1.3-megapixel front-facing camera.

Verizon released this variant (SCH-I500) for the United States on September 9, 2010.[71] It omits the front camera and FM radio of the base model, but adds a LED flash. Android 2.3 "Gingerbread" is available.[70] Its release was accompanied by some controversy over Verizon's decision to replace Google Search with Bing as the primary search engine.[72]

Sprint released this variant (SPH-D700) for the United States on August 31, 2010.[73] It lacks a FM radio, but it includes a LED flash, a message indication LED, a full slide-out QWERTY keyboard and 4GWiMax support. The included edition of TouchWiz in Android 2.1 had to be reworked to support landscape mode when using the QWERTY keyboard.

The Verizon Stratosphere (SCH-I405) is similar to the Epic 4G. Main differences are an upgraded 1.3 MP front camera, 4G LTE support and no message LED. The US Cellular Metrix (SCH-I405U) adds several bands to the LTE support. All models were released with Android 2.3.

The MetroPCS variant (SCH-R910) was released on February 21, 2011, for the United States. It was the first LTE smartphone at the time of its release. The Indulge shrinks the screen size from 4 inches to 3.5 inches, removes the front-facing camera, reduces the camera to 3.2 megapixels, removes the flash, lowers the screen resolution 480×320 pixels, and adds a full QWERTY keyboard. The Cricket model (SCH-R915) lacks LTE support, but adds CDMA 1xEV-DO support over AWS Band IV.

AT&T released this variant (SGH-I997) for the United States on May 15, 2011, while Rogers released it for Canada on July 26, 2011. It includes a faster 1.2 GHz version of the Exynos "Hummingbird" SoC, 16 GB of internal flash memory, 8 MP primary camera, 1.3 MP secondary front-facing camera, HSPA+ support and an improved 4.5-inch Super AMOLED+ screen. AT&T has released an Android 2.3.6 update while Rogers has released 2.3.3.

KT offers this variant (SHW-M130K) for South Korea as the Galaxy K. It includes a tri-band UMTS radio, a faster 1.2 GHz Hummingbird SoC, a T-DMB tuner and a smaller 3.5-inch Super AMOLED screen. It is sold under the "Anycall" branding.

The Nexus S is a Galaxy S-derived smartphone co-developed by Google and Samsung in 2010. The Nexus S differs from the Galaxy S in that it runs a stock version of Android provided by Google as opposed to the TouchWiz laden edition provided by Samsung and the mobile carriers. In addition, the Nexus S drops the microSD slot in favor of a NFC transmitter.

Models for the United States, United Kingdom and Canada utilize a 4-inch Super AMOLED screen similar to the reference Galaxy S, but with a small curvature Google refers to as "Contour Display". Models for other markets utilize a 4-inch SuperClear-LCD (SC-LCD) screen.

The Nexus S originally shipped with Android 2.3 "Gingerbread". It can be upgraded to Android 4.1.2 "Jelly Bean".

The dual SIM version of the Galaxy S Line, Samsung Galaxy S Duos, in contrast with other dual sim Samsung models, this phone is a part of the high-end "S" series, this is why it is marketed as a part of the "Galaxy S" family.

In a lawsuit filed on April 15, 2011, Apple accused Samsung of committing patent and trademark infringement with the touchscreen on Samsung Galaxy line of mobile products. That includes the Galaxy S smartphone and the Galaxy Tab tablet.[81]